Measuring implement.



v J. LA RSON.

MEASURING IMPLEMBNT.

APPLICATION FILED JUNE 25, 1907.

907,5 1 1 PatentedI Deo. 22, 1908.

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UNITED STATES PATENT FFTQE.

JOHN LARSON, OF LEWISTOWN, MONTANA.

MEASURING IMPLEMENT.

To all whom it may concern:

Be it known that I, JOHN LARSON, a citizen of the United States, residing at Lewistown, in the county of Fergus and State of Montana, have invented certain new and useful Improvements in Measuring Implements, of which the following is a specification.

This invention relates to measuring implements; and it has particular reference to implements for measuring planks and the like; and for laying off the ends of the same when said ends are to be cut at various angles other than -a right angle, such as is frequently the case with the treads and risers of stairs, with shelves that are to be fitted in closets where the side walls are not parallel, and at other than right angles to the rear walls, and in a number of other instances frequently arising in the exigencies of carpentry and building.

The object of the invention is to provide a sliding or expansible rule adapted for measuring the length of the plank or material to be out; the same being provided with adjustable arms at the ends thereof which may be set or adjusted and secured at various angles for the purpose of indicating the lines upon which the ends are to be out, thus enabling the length of plank or other material and the angles at the ends of the same to be determined at a single operation, and without the usual complications and calculations.

Further objects of the invention are to simplify and improve the construction and operation of the class of measuring implements to which the invention belongs.

With these and other ends in view which will readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination of parts which will be hereinafter fully described and particularly pointed out in the claims.

In the accompanying drawings has been illustrated a simple and preferred form of the invention; it being, however, understood that no limitation is necessarily made to the precise structural details therein exhibited, but that changes, alterations and modifications within the scope of the invention may be resorted to when desired.

In the drawings-Figure l is a perspective Speccaton of Letters Patent.

Application filed June 25, 1907.

Patented Dec. 22, 1908.

Serial No. 380,800.

View showing the improved measuring implement folded. Fig. 2 is a top plan view showing the implement extended for use. Fig. 3 is a longitudinal sectional view taken on the plane indicated by the line 3--3 in Fig. 2, Fig. 4 is a horizontal sectional view taken through one end of the implement on the plane indicated by the line 4 4 in Fig. 3. Fig. 5 is a cross section taken on the line 5 5 in Fig. 2. 6. is a cross section taken on the line 6-6 in Fig. 2.

Corresponding parts in the several figures are denoted by like characters of reference.

The extension rule which constitutes the body of the improved implement is composed of two main parts or members A, B, the former of which has a longitudinal recess 1, in which the latter is slidably mounted; the member B being provided with a shoulder 2 abutting upon the end of the member A, when the members are collapsed, as shown in Fig. l. The members A, B, are provided with longitudinal slots 3 and A; the member A carries a binding-screw .5, which extends through the slot A of the member B, the latter is provided with a guide-pin 6, the ends of which extend into the slot 3 of the member A the screw 5 and the pin 6 serve to guide the members when they are being extended or collapsed, and to preserve the edges of said members in parallel relation; the binding-screw serves additionally to secure the members relatively to each other in any position to which they may be adjusted.

The outer or terminal ends of the members A, B, are provided with recesses or pockets 7, for the accommodation of the arms 8 which are pivoted near the outer extremities of said pockets upon binding screws 9, whereby the said arms may be secured at various angles to the members A, B. The faces of the arms 8, as Well as the faces of the members A, B, may be laid off with measuring scales, indicating feet or inches, or any other system of measurement that may be desired.

By reference to Fig. l of the drawings, it will be plainly seen that the pockets 7, are formed intermediate the u per and lower sides of the members A, B; hence, when the arms 8 are extended, as shown in Fig. 2, said arms may be laid upon the face of a plank or a piece of timber, while the edge of the rule formed by the members A, B, will abut upon the edge of such plank, thus enabling the desired markings to be conveniently made adjacent to the outer edges of the arms 8, by a pencil or marking tool of any description.

From the foregoing description taken in connection with the drawings hereto annexed, the operation and advantages of this invention will be readily understood. The slidable rule which constitutes the body of the implement may be readily extended to ascertain the distance between two walls or abutments, suoli as stairs-stringers, closet walls or the like, and the arms S may then be unfolded, as shown in Fig. 2, adjusted against the walls or abutments, and secured by means of binding-screws 9; the implement may then be laid upon the plank that is to be cut, said plank being marked adjacent to the outer edges of the arms 8, thus indicating the lines upon which it is to be cut. Thus, by a single, extremely simple operation, a plank may be measured and marked in such a manner as to iit preciselyr in' the intended location, without necessitating the resorting to calculations of any kind, and without possibility of making a misiit provided that the most ordinary care and caution is observed.

The improved implement is extremely simple in construction, is capable of being manufactured at a very moderate expense; and, when `not in use, may be collapsed and carried in an ordinary tool box without danger of injury.

I claim- 1. An extensible ruler, comprising two members, one of the members having a recess formed between the sides thereof and adapted to receive the other member therein, said members having elongated slots therein which register with each other, means passing through one of the members and through the slot of the other member for holding the parts together at different positions, and arms pivoted to the outer ends of said members.

2. An extensible ruler comprising two members, one of the members having a recess formed between the sides thereof and adapted to receive the other member therein, said members having elongated slots formed therein which register with each other, means passing through one of the members and through the slot in the other member, and a pin in one of the members extending through the slots of the other member.

3. An extensible ruler, comprising two members, one of the members having a recess formed between the sides thereof and adapted to receive the other member therein, means for holding the members in adjustable engagement, pockets or recesses formed in the members, and arms pivoted to the ends of the members and adapted to be received in the pockets or recesses.

4. An extensible ruler comprising two members, one of the members having a longitudinal recess formed therein, the other member having one end made 'of a thickness to be received within the longitudinal recess of the other member, said members having elongated slots therein which register with each other, means passing through one ofthe members and through the slot of the other member for holding the parts together at different positions, and arms pivoted to the outer ends of said members.

In testimony whereof affix my signature, in presence of two witnesses.

GEO. H. Dn'rER'r, Kmkwoon Cnoss. 

